Assuming that it may be an inithooks bug, then you could double check the inithooks config. There should be enough info in the TKL docs about it to head you in the right direction there.

You could also try downgrading the package (back to what it was). All the upgraded packages should be in /var/cache/apt/archives (unless you've run 'apt-get clean'). If you haven't cleaned up for a while you may even have a previous version in there which you could downgrade to, otherwise you'll have to manually download a previous version from the TKL repo (check your /etc/apt/sources.list for that). Then manually install the older version: 'dpkg -i <package-name>.deb'.

Sorry I haven't got time to give you any more detailed info/help with this. If you confirm that it is a bug in inithooks then it'd be great if you could log a biug.